<template>
  <div class="home-banner">
    <XtxCarousel
      :autoplay="autoplay"
      :autoTime="autoTime"
      :banners="banners"
    ></XtxCarousel>
  </div>
</template>

<script>
import { ref } from "vue";
import { getBannerData } from "../../api/home";

export default {
  name: "Carousel",
  props: ["num"],
  setup(props) {
    // 是否要自动轮播
    let autoplay = ref(true);
    // 自动轮播时间
    let autoTime = ref(3000);
    // 存储轮播图数据
    let banners = ref([]);

    // 获取轮播图数据
    getBannerData(props.num).then((res) => {
      // console.log(res.result);
      banners.value = res.result;
      // console.log(banners.value);
    });

    return {
      autoplay,
      autoTime,
      banners,
    };
  },
};
</script>

<style scoped lang="less">
.home-banner {
  width: 1240px;
  height: 500px;
  position: absolute;
  left: 0;
  top: 0;
  z-index: 98;

  .xtx-carousel {
    :deep(.carousel-btn.prev) {
      left: 270px;
    }

    :deep(.carousel-indicator) {
      padding-left: 250px;

      .active {
        background-color: #fff;
      }
    }
  }
}

.xtx-carousel {
  width: 100%;
  height: 100%;
  min-width: 300px;
  min-height: 150px;
  position: relative;

  .carousel {
    &-body {
      width: 100%;
      height: 100%;
    }

    &-item {
      width: 100%;
      height: 100%;
      position: absolute;
      left: 0;
      top: 0;
      opacity: 0;
      transition: opacity 0.5s linear;

      &.fade {
        opacity: 1;
        z-index: 1;
      }

      img {
        width: 100%;
        height: 100%;
      }
    }

    &-indicator {
      position: absolute;
      left: 0;
      bottom: 20px;
      z-index: 2;
      width: 100%;
      text-align: center;

      span {
        display: inline-block;
        width: 12px;
        height: 12px;
        background: rgba(0, 0, 0, 0.2);
        border-radius: 50%;
        cursor: pointer;

        ~ span {
          margin-left: 12px;
        }

        &.active {
          background: #fff;
        }
      }
    }

    &-btn {
      width: 44px;
      height: 44px;
      background: rgba(0, 0, 0, 0.2);
      color: #fff;
      border-radius: 50%;
      position: absolute;
      top: 228px;
      z-index: 2;
      text-align: center;
      line-height: 44px;
      opacity: 0;
      transition: all 0.5s;

      &.prev {
        left: 20px;
      }

      &.next {
        right: 20px;
      }
    }
  }

  &:hover {
    .carousel-btn {
      opacity: 1;
    }
  }
}
</style>
